CN1324783C - Motor laminated core, method of manufacturing same, motor and ink jet recording device - Google Patents
Motor laminated core, method of manufacturing same, motor and ink jet recording device Download PDFInfo
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- CN1324783C CN1324783C CNB2005100637133A CN200510063713A CN1324783C CN 1324783 C CN1324783 C CN 1324783C CN B2005100637133 A CNB2005100637133 A CN B2005100637133A CN 200510063713 A CN200510063713 A CN 200510063713A CN 1324783 C CN1324783 C CN 1324783C
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- laminated core
- motor
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- core
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking
Abstract
A laminated core of a motor in which vibrations of core plates causing motor noise is restrained at a low cost; a method of manufacturing such a laminated core; a motor having such a laminated core; and an ink-jet recording apparatus having such a motor. In a laminated core (1) of a motor in which a plurality of core pieces (10) are laminated on each other and which has magnetic poles (13) each having a roughed surface of mountain portions (13a) and groove portions (13b) formed alternately in the direction of rotation of the motor, welded portions (31) for firmly fixing the core pieces (10) to each other are provided in the surface of one of the groove portions (13b) formed in the vicinities of the central portion of each magnetic pole (13) in the direction of rotation. Each welded portion (31) is formed continuously in the direction of lamination of the core pieces (10). Each welded portion (31) is formed by welding the surface of the groove portion (13b). By these welded portions (31), the core pieces (10) are firmly fixed to each other in the surface portions of the magnetic pole portions (13).
Description
Technical field
The present invention relates to the lamination electric machine iron core, make this laminated core method, in adorn the motor of this laminated core and the ink-jet recording apparatus of this motor be housed, specifically, the vibration damping that relates to used laminated core in class motors such as stepping motor, servomotor.
Background technology
Traditionally, structurally be lamination 10 stacked forming as shown in Figure 1, 2 as the laminated core of the stator core of stepping motor or similar motor with a lot of magnetic materials.Each lamination 10 be process with forcing press progressive forming in advance shown in flat shape.Therefore, a lamination 10 is placed on the top of another lamination 10 and in calking part as shown in the figure 14, carry out semi-stamping processing and two laminations 10 are fitted to each other and are fixed up.Repeat this operation and a lot of laminations 10 successively are fixed up each other, thereby form laminated core 1.
Laminated core 1 has outer frame part 11 that forms and the parts of tooth 18 that forms in interior circumferential portion in outer peripheral portion.Parts of tooth 18 is by 8 bridging parts 12 that perimeter surface are inwardly stretched out in the outer frame part 11 and the pole parts 13 that forms at these bridging part 12 front ends respectively constitute for instance.The shape of the surface irregularity that formation alternately is made of protuberance 13a and recess 13b along the direction of rotation of not shown rotor in the inner rim of each pole parts 13 part.The zone that surrounds of 8 pole parts 13 forms and is substantially circular endoporus 16 and not shown rotor is contained in this endoporus 16 thus.
But,, when drive motors, can produce very big noise inciting somebody to action this laminated core as mentioned above as in the motor of stator core.Although this noise is considered to be caused by a variety of causes, the present invention by various analyses find main causes be by the lamination 10 of stator core take place pole parts 13 near to vibrate and lamination 10 meeting resonate under the situation of certain condition due to.
In order to suppress this vibration or resonance, it is believed that, be necessary at a certain position of each parts of tooth 18 lamination 10 is fixed to one another.
Therefore, be provided with calking part 15 by test at the bridging part 12 of each parts of tooth.Like this, through finding to alleviate above-mentioned vibration or resonance effectively.But, in this case, increased a lot of calking parts 15 corresponding to a lot of parts of tooth 18, like this, not only must carry out technology and the exigent mould adjustment of skill work, and also also very unreasonable aspect the desired durability of mould.Therefore improved manufacturing expense.
In addition, calking partly is to be arranged on the pole parts 13 of parts of tooth 18 according to test.In this case, not only be difficult to carry out semi-stamping processing, and be difficult to guarantee the intensity of mould, because each lamination 10 forms very narrow flat shape in pole parts 13.Therefore, manufacturing is very difficult in actual applications.
In addition, also can consider another kind of method, in the method, lamination 10 is connected to each other with the band of binding agent or band binding agent.But the automation that not only makes this bonding process is difficulty thereby require very that high cost provides device therefor relatively, and in cleaning the stator core process this binding agent of elution is arranged and make lamination 10 danger disconnected from each other.
Summary of the invention
The purpose of this invention is to provide a kind of lamination electric machine iron core, in iron core, can under lower expense, suppress to cause the lamination vibration of motor noise, and the manufacture method of this laminated core is provided.
Another object of the present invention provides a kind of motor and a kind of ink jet recording device, has wherein prevented the generation of noise.
(1) presses one aspect of the present invention, a kind of motor laminated core is provided, wherein, a lot of magnetic sheets stack each other, laminated core has magnetic pole, each magnetic pole has rough surface, and this surface is to be made of protuberance that alternately forms along the motor direction of rotation and recess, it is characterized in that: use so that the melt-coating part branch that magnetic sheet firmly fixes together each other is arranged on the recess surface that forms on the magnetic pole.By the present invention, use so that the deposited part that magnetic sheet firmly fixes together each other forms in the magnetic pole recess surface, thereby can in the magnetic pole under the magneticaction, magnetic sheet be firmly fixed together each other.Therefore, can suppress to produce vibration and the noise of reduction motor.In addition, deposited part is to form in the lower recess of density of line of magnetic force, like this, just can reduce the deterioration that is caused magnetic characteristic by deposited heat.
(2) press another aspect of the present invention, in motor laminated core described in the last bar (1), the melt-coating part branch is arranged on along direction of rotation and is formed near the surface of the recess of each pole center part.From also the density of line of magnetic force distribution and the line line of force Fig. 4,5 of explanation being understood in distributing later on, density of line of magnetic force is minimum near the recess the pole center part, is 2500～5000Gs for instance.Just can further reduce the deterioration of magnetic characteristic because deposited part forms (along near the direction of rotation pole center part) in this position, and can obtain the symmetry of pole parts internal fixation power and can suppress generation of vibration effectively.
(3) by another aspect of the present invention, in motor laminated core described in the last bar (1), deposited part is separately positioned on along direction of rotation and is formed on the surface of the opposed distolateral recess of each magnetic pole.In the opposed distolateral updip of each magnetic pole in producing significantly vibration, because opposed distolateral being on bridging part substrate position farthest.Because deposited part forms, just can suppress vibration effectively in this part.
(4) by one side more of the present invention, a kind of motor laminated core is provided, wherein, make a lot of magnetic sheets superimposed each other, laminated core has magnetic pole, each magnetic pole has rough surface, and this surface is to be made of protuberance that alternately forms along the motor direction of rotation and recess, it is characterized in that: with so that magnetic sheet firmly fixes together melt-coating part branch each other is arranged on the shoulder of two rear side of each magnetic pole.Shoulder density of line of magnetic force in magnetic pole two rear side is less relatively.Therefore, deposited heat causes the minimum and unlikely harmful effect that causes motor characteristic of deterioration of magnetic characteristic.
(5) by another aspect of the present invention, a kind of motor laminated core is provided, wherein, make a lot of magnetic sheets superimposed each other, laminated core has magnetic pole, each magnetic pole has rough surface, and this surface is to be made of protuberance that alternately forms along the motor direction of rotation and recess, it is characterized in that: use so that the melt-coating part branch that magnetic pole firmly fixes together each other is arranged on the both side surface of each bridging part that connects magnetic pole and housing.Although density of line of magnetic force is higher relatively in each bridging part both sides, the relative broad of bridging part (comparing) with the magnetic pole protuberance.Therefore, even deposited heat can cause some deterioration to magnetic characteristic, also unlikely to motor characteristic generation harmful effect.
(6) by another aspect of the present invention, one is extended and formed to each deposited part along the superimposed direction of magnetic sheet in motor laminated core described in one of last bar (1)～(5).Because deposited part is to form one and extend along the superimposed direction of magnetic sheet, just needn't positions each deposited part again and the deposited part of some thin magnetic sheet linking portions is deposited again, so that can form deposited part rapidly and at an easy rate.
(7) by another aspect of the present invention, in the described motor laminated core of last bar (6), each deposited part is formed and makes a lot of depositedly overlap each other along superimposed direction.Because deposited process can carry out off and on along superimposed direction, light radiation just can be carried out off and on, and this just can reduce the power output of equipment and load and the melt-coating part branch is provided very high deposited energy.In addition, because deposited point overlaps each other, just can prevent from intermittence by deposited part to form the fault in the deposited process that is caused.
(8) by another aspect of the present invention, in one of last bar (1)～(7) described motor laminated core, deposited part is with the deposited formation of laser emission.Even must deposited position be less relatively zone and be positioned at position very dark as the stator core groove and all can carry out deposited with very high precision and very high speed to these positions by laser emission.
(9) by another aspect of the present invention, a kind of method of making motor laminated core is provided, wherein, make a lot of magnetic sheets superimposed each other, laminated core has magnetic pole, each magnetic pole has rough surface, and this surface is to be made of protuberance that alternately forms along the motor direction of rotation and recess, it is characterized in that: the deposited process that magnetic sheet is firmly fixed together each other is to carry out on the recess surface that forms in magnetic pole.As the condition of used deposited process here, corresponding magnetic sheet must be subjected to deposited fully and avoid deposited heat to worsen magnetic characteristic.But, find through test, even do not adopt specific conditions also can draw satisfied result, generally select for use the condition in the scope just passable as long as take to be familiar with this professional people as deposited condition.This deposited process acts on along direction of rotation pole center part nearby or on the recess surface that forms of opposing two ends for instance.In addition, deposited process also can act on the position beyond the magnetic pole recess, for instance, acts on each magnetic pole two rear side shoulder or connects the bridging part both sides of each magnetic pole and outer frame part.
(10) by the present invention on the other hand, in the manufacture method of the described laminated core of last bar (9), deposited process is carried out continuously along the superimposed direction of magnetic sheet.Carrying out to finish deposited process rapidly and not too arduously when deposited continuously along superimposed direction.
(11) by another aspect of the present invention, in the manufacture method of last bar (9) or (10) described motor laminated core, deposited process is by carrying out along the superimposed scanning direction luminous point of magnetic sheet, and this finishes deposited process as the luminous point heat melts thereby make magnetisable material.Certainly, also can adopt the scolder that attaches on recess surface to finish deposited process.But, avoid influencing magnetic characteristic even can obtain enough bed knifes by deposited recess surface itself.
(12) by another aspect of the present invention, in the described motor laminated core manufacture method of last bar (11), carry out with such compartment unoccupied place, the invocation point area is overlapped mutually along superimposed direction with spot scan.Because deposited can carrying out off and on along superimposed direction just can carry out the light emission off and on.Therefore, can reduce the power output of equipment and load and provide higher deposited energy deposited part.In addition, because deposited point is to overlap mutually, just can prevent the fault that forms the deposited process that is caused intermittence by deposited part.
(13) press another aspect of the present invention, in last bar (11) or (12) described motor laminated core manufacture method, luminous point and laminated core are keeping the superimposed direction in a predetermined angular lower edge relatively to move.By making luminous point and laminated core keep the superimposed direction in beam incident angle lower edge to relatively move, just can make luminous point when scanning, keep a predetermined shape.Therefore, just can stably heat and in stable irradiated site, have stable energy density, thereby can reduce the deposited fault of magnetic sheet, and can do the least possible heating owing to strengthened stability.Therefore, can suppress the deterioration of the magnetic pole characteristic that causes by heating.
(14) by another aspect of the present invention, in the manufacture method of one of last bar (9)～(13) described motor laminated core, deposited process is finished with laser emission.Even the welding position area is less relatively, the very dark groove of part of living in as stator core, to position that must welding can be with Laser emission with high accuracy very, very high-speed carry out deposited.This method is to deposited this laminated core particularly suitable.Through finding, this Laser emission is deposited to be preferably in Laser emission power and to be limited under to a certain degree the condition and to carry out.
(15) by another aspect of the present invention, provide a kind of motor, wherein, be equipped with at one of last bar (1)～(8) described motor laminated core, as stator core.Therefore can obtain the motor that noise is suppressed.
(16) by the present invention on the other hand, provide a kind of ink jet recording device, wherein, be equipped with at the described motor of last bar (15), as the drive source of paper-feeding mechanism or ink gun feed mechanism.Therefore, the very low ink jet recording device of noise level in the time of can obtaining printing.
Description of drawings
Fig. 1 is a perspective view, and the overall structure of the embodiment of the invention 1 lamination electric machine iron core is shown.
Fig. 2 is the plane graph of Fig. 1 lamination electric machine iron core.
Fig. 3 is an enlarged perspective, amplifies the surface that Fig. 1 lamination electric machine iron core pole parts is shown.
Fig. 4 is for having the density of line of magnetic force distribution plane simulation figure of motor internal tooth form part under the motor excitation condition of laminated core as stator core.
Fig. 5 is magnetic line of force distribution plane simulation figure in Fig. 4.
Fig. 6 is for constructing sketch in order to the equipment that carries out the used deposited process of shop drawings 1 lamination electric machine iron core.
Fig. 7 is the structure sketch, Fig. 6 is shown is subjected to photoirradiation part structure nearby.
Fig. 8 is an enlarged drawing, luminous point is shown in the deposited process of Fig. 7 and by the shape of deposited part.
Fig. 9 is a perspective view, and the overall structure of the embodiment of the invention 2 lamination electric machine iron cores is shown.
Figure 10 is the structure sketch, is depicted as shop drawings 9 lamination electric machine iron cores and carries out being subjected on the deposited process device therefor photoirradiation part structure nearby.
Figure 11 is a perspective view, and the structure of the embodiment of the invention 3 lamination electric machine iron cores is shown.
Figure 12 is a perspective view, and the structure of the embodiment of the invention 4 lamination electric machine iron cores is shown.
Figure 13 is a perspective view, and the motor that has the lamination electric machine iron core among one of embodiment 1～4 is shown.
Figure 14 is a perspective view, and the ink jet recording device internal structure that Figure 13 motor is housed is shown.
Embodiment
Embodiment 1:
The laminated core basic structure of the embodiment of the invention 1 has been given explanation in " background technology " part.In embodiment 1, laminated core 1 has a lot of protuberance 13a and recess 13b on each pole parts 13 surface in 8 of laminated core 1 endoporus 16, along being contained on the rotor direction of rotation not shown endoporus 16 in the recess 13b surface, pole parts 13 center the deposited part 31 of formation shown in Fig. 1～3.Certainly, laminated core of the present invention is not limited to have 8 pole parts 13, but comprises having the laminated core that any amount is different from 8 pole parts.Although in calking part 15 shown in Fig. 1,2, this just for basic condition of the present invention is described, is therefore omitted in laminated core of the present invention.
The deposited part 31 of each that forms in recess 13b is extended and is formed a whole line along the superimposed direction of laminated core 1.Deposited part 31 is will give explanation by what deposited recess 13b formed as following.By deposited part 31, lamination 10 firmly fixes together on the surface portion of pole parts 13 each other.
Except that deposited recess 13b surface itself, can form deposited part 31 with scolder for instance, make solder attachment on recess 13b surface and extend along superimposed direction, be heated then and make its thawing.Even do not say, metal, synthetic resin one class material beyond the scolder also can use, as long as it can be together fixed to one another with lamination 10.Can heat and be melted by light emission this attachment material and will be given explanation as following; Can by electrothermal way as be heated by resistive, induction heating etc.; Maybe can contact with the surface of recess 13b as making heater, heating iron etc. by snead process.Snead process is not only in order to heating and fusing attachment material, but also in order to heating and fusing recess 13b surface itself.
The density of line of magnetic force and the magnetic line of force under the excitation condition in the distribution in the parts of tooth 18 shown in Fig. 4,5.From then on figure can recognize that density of line of magnetic force is in the recess 13b of each parts of tooth 18 pole parts 13, particularly near minimum in the recess 13b of core and in 2,500～5000Gs scope.Like this, even be appreciated that magnetic characteristic because deposited heat worsens, the degree that worsens in this part is also especially little.In addition, pole parts 13 protuberance 13a and bight thereof have the highest density of line of magnetic force.Be appreciated that be maximum to the influence that magnetic characteristic caused in this part by deposited heat.Although with contour density of line of magnetic force is shown for convenience in Fig. 4, the variation of density of line of magnetic force is not step-like but level and smooth.
Therefore, in embodiment 1,, lamination 10 enough can be firmly fixed the magnetic characteristic that together and does not as far as possible influence laminated core 1 each other because deposited part 31 is arranged on the relatively low recess 13b surface of density of line of magnetic force.In addition, deposited part 31 is formed near in the recess of pole parts 13 cores in each recess 13, the part that can obtain the symmetry of bed knife between the lamination 10 and will be subject to magnetic stress most firmly fixes together, thereby can obtain the effect that suppresses vibration fully, effectively.
In addition, in embodiment 1, can obtain the process of the more cheap relatively deposited part 31 of formation.In the method that forms calking part 15 as mentioned above, must change mould or process to obtain new calking part.In addition, become very narrow and magnetic property is worsened at the bridging part 12 that forms calking part 15.In addition, the diameter of each calking part 15 is very little and shortened life-span of mould itself, and maintenance cost has also correspondingly increased.In addition, in embodiment 1, if carry out depositedly after finishing laminated core 1 on 8 pole parts 13, situation is just much better.The content of process is simple, and process can be carried out automation easily and cheaply.In addition, because deposited part 31 is formed on the surface of rotor in respective poles part 13, can obtain and suppress the goodish effect of vibration.
In addition, in embodiment 1, just form deposited part 31 at a position of each pole parts 13.This can dwindle as far as possible because the rotten influence to magnetic characteristic of pole parts 13 inner iron core sheets 10.Though can in each pole parts 13, form deposited part 31 in two or more positions, be preferably in each pole parts 13 along direction of rotation arrange deposited part 31 symmetrically with respect to the center so that the symmetry that obtains bed knife between the lamination 10 as mentioned above.By specification requirement and when asymmetric, the center that preferably deposited part 31 is arranged in each pole parts nearby in each pole parts.
Be made as stator core respectively and the motor of embodiment 1 laminated core 1 be housed and the common electric machine of normal lamination iron core be housed, and in anechoic chamber, the noise properties of this two motor has been done to measure and compare as stator core.The result is, the average noise level in embodiment 1 motor is 27dB and average noise level in the common electric machine is 34dB.Verified, embodiment 1 motor has the effect (noise has reduced 55%) of improving 7 dB of noise.
Below the method for making laminated core 1 by embodiment 1 is described with reference to Fig. 6,7.The deposited equipment of Fig. 6 wherein, is processed formed a lot of lamination 10 by the progressive forming of forcing press and is fixed together by calking part 14 is superimposed each other in order to laminated core is carried out the equipment of deposited process.Light branch unit 22 is received laser oscillator 21, and oscillator is connected with the Laser Power Supply 20 that has cooling device, optical fiber 23 is received the output of a lot of light branch units 22.Optical fiber 23 is received emitter 24 and laser beam is penetrated from corresponding emitter 24.The superimposed direction (being above-below direction among the figure) that emitter 24 makes laser beam favour laminated core 1 on arranging is injected the endoporus 16 of laminated core 1 with the incidence angle of about 45 degree shown in two chain-dotted lines from two directions that depart from 180 degree each other.These two emitters 24 and laminated core 1 not only can relatively be done close to each other or moving of separating by driving mechanism 25 on arranging along the vertical direction, and can spend around the rotational up and down 45 of laminated core 1 relative to one another.
The quantity of emitter 24 can only be 1 or 3 or more.In addition, although the arrangement that emitter 24 is moved up and down in the above-described embodiments also can make turntable 25B move up and down and mobile laminated core 1 in design.In brief, as long as luminous point and laminated core can move relative to each other along superimposed direction.
The light of predetermined wavelength takes place and makes the emitter 24 that moves up and down can use the inside of luminous point continuous sweep laminated core 1 endoporus 16 in laser oscillator 21 shown in Figure 6 serially.The also available laser pulse that is taken place by laser oscillator 21 carries out the intermittence scanning of luminous point.In this case, not only can reduce the energy consumption or the apparatus of load of laser oscillator 21, also can obtain very high laser output power.
Do at luminous point under the situation of intermittent scanning, might make luminous point can not and sweep speed and time interval of forming luminous point be transmitted between the lamination 10 harmoniously.Although can to sweep speed and the time interval that forms luminous point be controlled and the position of luminous point and the contact portion between the lamination 10 are coincided, but equipment configurations can become very complicated and might make the upper-lower position that is deposited over luminous point have when skew to do fully inadequately slightly.
In this respect, in embodiment 1, the time interval of sweep speed, spot diameter and formation luminous point is carried out adjustment in advance and luminous point 26 is being overlapped luminous point 26 as shown in Figure 8 along superimposed direction when superimposed scanning direction is on recess 13b surface each other.Therefore, even on recess 13b surface, form luminous point 26 off and on, also form deposited part 31 serially and need not any accurate control or accurate control device just can prevent the fault that luminous point 26 is shifted and causes.
In addition, in embodiment 1, the shape of luminous point 26 is changeless, because the incidence angle that is given off laser beam by emitter 24 keeps invariable.Therefore, the energy density and the value that are provided by laser also are changeless, thereby can stably carry out deposited.
Although the shape of luminous point 26 is shown and is done circularly in Fig. 8, preferably launch oval-shaped luminous point 26 and its major axis is extended on luminous point 26 scanning directions, just extending on the above-below direction or on the superimposed direction.Like this in scanning institute along having amplified spot diameter on the superimposed direction, just under the situation that adjacent deposited point is overlapped each other, make continuous deposited easily with the luminous point at intermittence.In addition, can shorten sweep time or shorten and on the scanning direction, to make luminous point overlap the required deposited time.Like this, preferably make the diameter of luminous point 26, just deposited part 31 width be equal to or less than recess 31b width half in order to avoid influence protuberance 31a.
Embodiment 2:
Below the laminated core of the embodiment of the invention 2 is described.In this laminated core 1, deposited part 32,33 is formed as shown in Figure 9 on each magnetic pole 13 back side both sides shoulder 13c, 13d in 8 of stator core endoporus 16.These deposited parts 32,33 are extended so that form an integral body along laminated core 1 superimposed direction.Deposited part the 32, the 33rd, by 13 liang of rear side shoulders of deposited each pole parts 13c, 13d surface form as giving explanation later on.Lamination 10 firmly fixes together in the surface each other at each pole parts 13 shoulder 13c, 13d.Among the deposited and embodiment 1 of deposited part 32,33 itself is identical.But,, can carry out as follows as adopting laser.
With laser emission under the situation on the deposited part 32,33, it is very big that angle of radiation becomes, because the distance between each pole parts 13 back side both sides shoulder 13c, 13d and outer frame part 11 is very short, thereby laser only probably can not arrive the bottom (on the table top) of laminated core 1 during the position radiation above laminated core 1 as shown in Figure 7 at it.Therefore, in embodiment 2, will be arranged in above the laminated core 1 in order to the hoisting mechanism 25A of elevator-launcher 24 and below as shown in figure 10.Hoisting mechanism 25A is arranged in the top and following of laminated core 1 and emitter 24 is moved up and down under its attitude of maintenance, thereby luminous point can be moved up and down at shoulder place, both sides, pole parts 13 back side along the superimposed direction of iron core.On two rear side shoulder 13c, 13d, repeat this process respectively, and when on a pole parts 13, finishing this process, make turntable 25B rotate a miter angle.On all the other untreated pole parts 13, repeat this process one by one until having handled whole 8 pole parts 13.In addition, in embodiment 2, be positioned at emitter 24 below the laminated core 1 and pass the set hole 25C of turntable 25B with Laser emission overleaf on both sides shoulder 13c, the 13d.
In Fig. 2, because the density of line of magnetic force very little (seeing Fig. 4,5) of each pole parts 13 back side both sides shoulder 13c, 13d, just can under deposited part 32,33 does not influence the condition of laminated core 1 magnetic characteristic as far as possible, lamination 10 quite firmly not fixed together in each pole parts 13.
By on each pole parts 13 back side both sides shoulder 13c, 13d surface, forming deposited part symmetrically, just can obtain the symmetry of bed knife between the lamination 10, and can obtain the effect that fully suppresses vibration effectively, firmly fix together because will be vulnerable to the part of magnetic stress most.
Made respectively as stator core and the motor of embodiment 2 laminated cores 1 has been housed and the common electric machine of normal lamination iron core is housed, the noise properties of this two motor has been carried out measuring and comparing in anechoic chamber as stator core.The result is, the average noise level of embodiment 2 motors is 27dB and the average noise level of common electric machine is 34dB.Like this, verified, embodiment 2 motors have the effect (noise reduces 45%) of improving noise 7dB.
Embodiment 3:
Below the laminated core of the embodiment of the invention 3 is described.In this laminated core 1, respectively on each pole parts 13 surface in 8 of endoporus 16 among a lot of protuberance 13a and the recess 13b along being contained in the recess 13b surface, rotor direction of rotation pole parts not shown endoporus 16 in 13 opposing both sides the deposited part 34,35 of formation as shown in figure 11.
The deposited part 34,35 that forms in recess 13b fuses and extends along the superimposed direction of laminated core 1.Surface by deposited recess 13b forms deposited part 34,35.Lamination 10 is firmly fixed together each other in the surface portion of each pole parts 13 by this two deposited part 34,35.The cladding methods of this deposited part 34,35 etc. are interior described identical with embodiment 1.
Embodiment 4:
Below 4 laminated cores describe to the embodiment of the invention.In this laminated core 1, form deposited part 36 as shown in figure 12 in each bridge 12 opposing both sides respectively.In Figure 12, only be illustrated in a deposited part 36 of bridge 12 1 sides.The deposited part 36 that forms in bridge 12 fuses and extends along the superimposed direction of laminated core.Surface by deposited bridge 12 forms deposited part 36.By deposited part 36, that lamination 10 is together fixed to one another securely in the surface portion of corresponding bridge 12.The cladding methods of this deposited part 36 etc. are described identical with embodiment 1.
Embodiment 5:
The laminated core of one of being equipped with as stator core in motor 40 shown in Figure 13 among the embodiment 1～4, these motors 40 are contained on the ink jet recording device 41 shown in Figure 14 as the drive source of paper-feeding mechanism and the drive source of ink gun feed mechanism.The result is that the noise that takes place when ink jet recording device 41 printings is compared obviously with conventional equipment and reduced.In two Figure 14 motors 40, above one be the motor 40 that is used for paper-feeding mechanism, below one be the motor 40 that is used for the ink gun feed mechanism.Figure 14 illustrates the state before still unassembled paper-feeding mechanism and the ink gun feed mechanism.These mechanisms are that people are familiar with, and have therefore omitted the detailed description of relevant this two mechanism.
Claims (12)
1. motor laminated core, wherein, a lot of magnetic sheets are superimposed together each other, described laminated core has magnetic pole, magnetic pole respectively has rough surface, this is to be made of protuberance that alternately forms by the motor direction of rotation and recess, it is characterized in that: with so that described magnetic sheet firmly fixes together melt-coating part branch each other is arranged on the shoulder of two rear side of each described magnetic pole.
2. by the described motor laminated core of claim 1, it is characterized in that: each described deposited part is to extend and form one along the superimposed direction of described magnetic sheet.
3. by the described motor laminated core of claim 2, it is characterized in that: each described deposited part is to be formed by the deposited point that much overlaps each other along described superimposed direction.
4. by described motor laminated core one of in the claim 1～2, it is characterized in that: described deposited part forms by laser emission is deposited.
5. method of making motor laminated core, a lot of magnetic sheets are superimposed together each other in the iron core, described laminated core has magnetic pole, each magnetic pole has the rough surface that is made of protuberance that alternately forms along the motor direction of rotation and recess, it is characterized in that: with so that described magnetic sheet together the deposited process of firmly fixing each other is to carry out on the shoulder of two rear side of each described magnetic pole.
6. by the method for the described manufacturing motor laminated core of claim 5, it is characterized in that: described deposited process is carried out continuously along the superimposed direction of described magnetic sheet.
7. by the method for the described manufacturing motor laminated core of claim 5, it is characterized in that: described deposited process is by carrying out along the superimposed scanning direction of described magnetic sheet with luminous point with respect to described laminated core, thereby with the heat melts magnetisable material of described luminous point itself.
8. by the method for the described manufacturing motor laminated core of claim 7, it is characterized in that: the scanning with described luminous point is off and on so that spot areas is carried out along the interval that described superimposed direction overlaps each other.
9. press the method for claim 7 or 8 described manufacturing motor laminated cores, it is characterized in that: keep a predetermined angular in order to the beam incident angle that forms described luminous point with respect to described laminated core, described luminous point moves with respect to described laminated core along the superimposed direction of described laminated core.
10. by the method for the described manufacturing motor laminated core of claim 5, it is characterized in that: described deposited process is undertaken by laser emission.
11. a motor is characterized in that: be equipped with by the described motor laminated core of claim 1, as stator core.
12. an ink jet recording device is characterized in that: be equipped with by the described motor of claim 11, as the drive source of paper-feeding mechanism or ink gun feed mechanism.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP285907/97 | 1997-10-17 | ||
| JP28590797 | 1997-10-17 | ||
| JP285907/1997 | 1997-10-17 | ||
| JP57198/98 | 1998-03-09 | ||
| JP5719898 | 1998-03-09 | ||
| JP57198/1998 | 1998-03-09 | ||
| JP262127/1998 | 1998-09-16 | ||
| JP262127/98 | 1998-09-16 | ||
| JP26212798 | 1998-09-16 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988024209A Division CN100392944C (en) | 1997-10-17 | 1998-10-16 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1665099A CN1665099A (en) | 2005-09-07 |
| CN1324783C true CN1324783C (en) | 2007-07-04 |
Family
ID=27296174
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988024209A Expired - Fee Related CN100392944C (en) | 1997-10-17 | 1998-10-16 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
| CNB2005100637133A Expired - Fee Related CN1324783C (en) | 1997-10-17 | 1998-10-16 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988024209A Expired - Fee Related CN100392944C (en) | 1997-10-17 | 1998-10-16 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US6249072B1 (en) |
| JP (1) | JP3543328B2 (en) |
| CN (2) | CN100392944C (en) |
| WO (1) | WO1999021264A1 (en) |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392944C (en) * | 1997-10-17 | 2008-06-04 | 精工爱普生株式会社 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
| JP3563650B2 (en) * | 1999-10-25 | 2004-09-08 | 株式会社日立産機システム | Rotating electric machine |
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| BR0002187A (en) * | 2000-03-30 | 2001-11-13 | Brasil Compressores Sa | Process of forming an annular package of metal sheets of a linear motor stator and an annular opacity of formed metal sheets |
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| JP3621653B2 (en) * | 2001-03-28 | 2005-02-16 | 三菱電機株式会社 | Rotating electric machine stator, stator core and method of manufacturing the same |
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| JP3594003B2 (en) * | 2001-08-28 | 2004-11-24 | 日産自動車株式会社 | Rotating electric machine and method of manufacturing the same |
| DE10225154B4 (en) * | 2002-06-06 | 2012-06-06 | Robert Bosch Gmbh | Soft magnetic powder composite, process for its preparation and its use |
| DE10243985A1 (en) * | 2002-09-20 | 2004-04-01 | Robert Bosch Gmbh | Stator core |
| JP3879649B2 (en) * | 2002-10-08 | 2007-02-14 | 三菱電機株式会社 | Stator disassembling method and stator disassembling apparatus |
| JP4016341B2 (en) * | 2003-06-19 | 2007-12-05 | アイシン精機株式会社 | Three-phase synchronous reluctance motor |
| JP4220324B2 (en) * | 2003-08-01 | 2009-02-04 | 日産自動車株式会社 | Rotating electric machine |
| US7728481B2 (en) * | 2003-10-02 | 2010-06-01 | Lg Electronics Inc. | Laminated body of motor and manufacturing method thereof |
| US7271519B2 (en) * | 2003-10-02 | 2007-09-18 | Lg Electronics Inc. | Laminated body of motor and manufacturing method thereof |
| DE102004048105A1 (en) * | 2004-10-02 | 2006-04-06 | Bosch Rexroth Aktiengesellschaft | Stator of an electric machine |
| JP2008098484A (en) * | 2006-10-13 | 2008-04-24 | Fine Steel Engineering:Kk | Method for manufacturing integrated lamination, and machine component |
| JP5258190B2 (en) * | 2006-12-01 | 2013-08-07 | オリエンタルモーター株式会社 | Laminated iron core structure of stepping motor |
| US7847443B2 (en) * | 2008-04-10 | 2010-12-07 | Burgess-Norton Mfg. Co., Inc. | Manufacture of electric motor component |
| JP2010068686A (en) * | 2008-09-12 | 2010-03-25 | Honda Motor Co Ltd | Stator for electrical rotating machine |
| JP5875746B2 (en) * | 2009-09-09 | 2016-03-02 | 株式会社三井ハイテック | Manufacturing method of stator core |
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| JP5352445B2 (en) * | 2009-12-28 | 2013-11-27 | 株式会社三井ハイテック | Manufacturing method of laminated iron core |
| JP5659541B2 (en) * | 2010-04-07 | 2015-01-28 | 株式会社デンソー | Rotating electric machine stator core |
| CN102244429B (en) * | 2010-05-13 | 2014-09-03 | 株式会社电装 | Rotor core and method of fastening rotor core and rotary shaft |
| CN102170180B (en) * | 2011-05-09 | 2013-01-23 | 佛山市顺德区泛仕达机电有限公司 | Novel permanent magnet external rotor motor |
| SI24532A (en) * | 2013-11-05 | 2015-05-29 | Nela, Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. | Adaptive laser bonding of the stator and rotor laminations |
| JP6239450B2 (en) | 2014-06-25 | 2017-11-29 | 住友重機械工業株式会社 | Injection molding machine |
| CN104734375B (en) * | 2015-04-13 | 2018-01-23 | 重庆大学 | A kind of electric motor end cap fixed using alignment pin and method |
| US10340754B2 (en) | 2015-11-25 | 2019-07-02 | Mitsubishi Electric Corporation | Rotating electrical machine and method of manufacturing rotating electrical machine |
| ITUB20155909A1 (en) * | 2015-11-25 | 2017-05-25 | Bosch Gmbh Robert | GEAR PUMP |
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| US11271459B2 (en) * | 2016-03-28 | 2022-03-08 | Aisin Corporation | Rotor manufacturing method |
| JP6813083B2 (en) * | 2017-03-31 | 2021-01-13 | アイシン・エィ・ダブリュ株式会社 | Core manufacturing method and core |
| JP7172812B2 (en) | 2019-04-08 | 2022-11-16 | 株式会社デンソー | LAMINATED CORE, ROTATING ELECTRICAL MACHINE, AND LAMINATED CORE MANUFACTURING METHOD |
| CN115843384A (en) | 2020-09-09 | 2023-03-24 | 阿尔卑斯阿尔派株式会社 | Magnetic core and magnetic component |
| JPWO2022054725A1 (en) | 2020-09-09 | 2022-03-17 | ||
| CN114178697B (en) * | 2021-12-20 | 2022-12-13 | 上海交通大学 | Pulse laser micro spot welding system and welding method for motor stator lamination |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58115845U (en) * | 1982-01-29 | 1983-08-08 | 株式会社安川電機 | Laminated fixing device for rotating electric machine core |
| JPH0252127A (en) * | 1988-05-27 | 1990-02-21 | Bruderer Ag | Method and device for manufacturing welded punching member |
| JPH02220790A (en) * | 1989-02-22 | 1990-09-03 | Fanuc Ltd | Welding method for motor stator |
| JPH077876A (en) * | 1993-06-18 | 1995-01-10 | Matsushita Electric Ind Co Ltd | Motor |
| JPH0956099A (en) * | 1995-06-07 | 1997-02-25 | Matsushita Electric Ind Co Ltd | Stator for motor and its manufacture |
| JPH09168258A (en) * | 1995-12-14 | 1997-06-24 | Matsushita Electric Ind Co Ltd | Method for assembling armature core |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666023A (en) | 1979-11-05 | 1981-06-04 | Toshiba Corp | Manufacture of magnetic circuit |
| JPS58115845A (en) | 1981-12-24 | 1983-07-09 | レイセオン カンパニ− | Resistance circuit network |
| JPS5971879A (en) * | 1982-10-18 | 1984-04-23 | Nec Corp | Serial printer |
| US4754178A (en) * | 1986-04-29 | 1988-06-28 | Mcs, Inc. | Stepper motor |
| US4990809A (en) * | 1987-04-27 | 1991-02-05 | The Superior Electric Company | Variable reluctance motor |
| JPH09163691A (en) * | 1995-12-01 | 1997-06-20 | Toshiba Mec Kk | Laminated core and its production |
| CN100392944C (en) * | 1997-10-17 | 2008-06-04 | 精工爱普生株式会社 | Motor laminated core, method of manufacturing same, motor and ink jet recording device |
-
1998
- 1998-10-16 CN CNB988024209A patent/CN100392944C/en not_active Expired - Fee Related
- 1998-10-16 US US09/331,043 patent/US6249072B1/en not_active Expired - Fee Related
- 1998-10-16 CN CNB2005100637133A patent/CN1324783C/en not_active Expired - Fee Related
- 1998-10-16 JP JP52368799A patent/JP3543328B2/en not_active Expired - Fee Related
- 1998-10-16 WO PCT/JP1998/004683 patent/WO1999021264A1/en active Application Filing
-
2001
- 2001-02-13 US US09/782,624 patent/US6448682B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58115845U (en) * | 1982-01-29 | 1983-08-08 | 株式会社安川電機 | Laminated fixing device for rotating electric machine core |
| JPH0252127A (en) * | 1988-05-27 | 1990-02-21 | Bruderer Ag | Method and device for manufacturing welded punching member |
| US5053601A (en) * | 1988-05-27 | 1991-10-01 | Bruderer Ag | Process and apparatus for producing welded stamped parts |
| JPH02220790A (en) * | 1989-02-22 | 1990-09-03 | Fanuc Ltd | Welding method for motor stator |
| JPH077876A (en) * | 1993-06-18 | 1995-01-10 | Matsushita Electric Ind Co Ltd | Motor |
| JPH0956099A (en) * | 1995-06-07 | 1997-02-25 | Matsushita Electric Ind Co Ltd | Stator for motor and its manufacture |
| CN1145544A (en) * | 1995-06-07 | 1997-03-19 | 松下电器产业株式会社 | Motor stator and method of manufacturing thereof |
| JPH09168258A (en) * | 1995-12-14 | 1997-06-24 | Matsushita Electric Ind Co Ltd | Method for assembling armature core |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999021264A1 (en) | 1999-04-29 |
| US6448682B2 (en) | 2002-09-10 |
| CN1665099A (en) | 2005-09-07 |
| JP3543328B2 (en) | 2004-07-14 |
| US6249072B1 (en) | 2001-06-19 |
| CN100392944C (en) | 2008-06-04 |
| US20010015589A1 (en) | 2001-08-23 |
| CN1246973A (en) | 2000-03-08 |
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